64005670 has 16 divisors (see below), whose sum is σ = 116789760. Its totient is φ = 25251264.

The previous prime is 64005659. The next prime is 64005677. The reversal of 64005670 is 7650046.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (64005677) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 43110 + ... + 44569.

It is an arithmetic number, because the mean of its divisors is an integer number (7299360).

Almost surely, 2^64005670 is an apocalyptic number.

64005670 is a deficient number, since it is larger than the sum of its proper divisors (52784090).

64005670 is a wasteful number, since it uses less digits than its factorization.

64005670 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 87759.

The product of its (nonzero) digits is 5040, while the sum is 28.

The square root of 64005670 is about 8000.3543671515. The cubic root of 64005670 is about 400.0118121512.

The spelling of 64005670 in words is "sixty-four million, five thousand, six hundred seventy".